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  #1  
Old 04-22-2011, 12:19 PM
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Default Driveshaft safety loop question?

I want to get a driveshaft safety loop, but have a stupid question. Which end are they supposed to go at, the trans, the rear end or both??

I was looking at getting one of these that would bolt right to the trans cross member. I've seen this one on another 68 Nova and it fits quite nicely. http://www.spohn.net/?keywords=drive...search&x=0&y=0

The other option would be to get a universal kit from Summit or Jegs.

Thanks in advance.
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Old 04-22-2011, 12:25 PM
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if the back hits it will bouce wildly and possibly come thru the floor. if the front hits and digs into the asphault, it can launch the car. i would place it somewhere that when either end hangs it hits the loop before the ground.
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Old 04-22-2011, 12:52 PM
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I believe for NHRA specs it has to be within 6" of the front u-joint, so that is where I put mine.

http://www.nhra.com/UserFiles/file/U...0Unleashed.pdf

Rear one might be nice to protect your floors/trunk but aren't required as far as I can tell.
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Old 04-22-2011, 02:26 PM
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Thanks guys. I think I might get the one from Spohn and for the extra $25, I'll get the Summit one and make it fit the rear so I have them both covered.
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Pro Touring 68 Acadian(Nova)
Speedtech subframe with high clearance control arms
Prodigy Bar rear suspension
Ridetech single adjustable coilovers
Wilwood 12.2" brakes
New Gen Splitters
LS3 and TKO600

Link to my build: https://lateral-g.net/forums/showthread.php4?t=14349

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Old 04-22-2011, 04:07 PM
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That "broken driveshaft will launch the car" is hard to believe. I'm pretty sure they tried on Mythbusters and that myth was busted
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Old 04-22-2011, 06:22 PM
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I thought I remember reading that the NHRA rules changed to where you need a front and rear loop. That could have been for non OEM floorpans though. Front would be the important one I'd think just like was previously stated. All depends on what you are doing with it.
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Old 04-22-2011, 10:30 PM
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Quote:
That "broken driveshaft will launch the car" is hard to believe.
i dont think it is really that likely, but i still wouldnt want it bouncing up right next to me.

the one i built sits right in front of the mufflers, probably 2/3 of the way back. it supports both ends.
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Old 04-23-2011, 12:40 AM
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Its probably more of a tearing up the floor and then bouncing around the interior passenger compartment sort of thing. Also probably scoring up the pavement I'm sure.
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Old 04-23-2011, 12:09 PM
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Pretty cheap insurance really....I have both front and rear loops now.
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